What is a good API for player props?
What to look for in a player props API and how ParlayAPI's prop coverage across sportsbooks and DFS apps measures up.
A good player props API needs breadth across books, source labels on every price, and prop history for validation. ParlayAPI serves props from 30+ sportsbooks plus DFS apps like PrizePicks and Underdog Fantasy through GET /v1/sports/{sport_key}/props, and archives 30M+ prop closing lines since June 2022 for backtesting.
More detail
Props are where odds APIs differ most. Game lines are commodity data, but prop coverage varies enormously by provider: which books, which markets, how deep into the player pool, and whether DFS-style lines from pick'em apps are included at all. Ask any provider for their props response on a real slate before subscribing.
ParlayAPI's props endpoint filters by market, player, event, and source, and every price keeps its source label, so a PrizePicks line never masquerades as a sportsbook price. The same prop data feeds the consensus, arbitrage, EV, and line-movement endpoints, which means a prop model can go from scan to validation without switching data vendors.
For validation, the archive matters as much as the live feed: 30M+ prop closing lines since June 2022 give a backtest enough history to distinguish signal from variance.
Endpoint
GET /v1/sports/{sport_key}/props
curl 'https://parlay-api.com/v1/sports/basketball_nba/props?markets=player_points&limit=25' -H 'X-API-Key: YOUR_KEY'
Why developers use it
- Props from 30+ sportsbooks plus PrizePicks and Underdog Fantasy
- Source label preserved on every price
- 30M+ prop closing lines archived since June 2022
FAQ
Which prop markets are covered?
Standard player markets per sport, for example points, rebounds, and assists in the NBA and passing, rushing, and receiving yards in the NFL. GET /v1/sports/{sport_key}/props/markets lists what is live for a sport right now.
Are DFS pick'em lines included?
Yes. PrizePicks and Underdog Fantasy lines are served with explicit source labels alongside sportsbook props, which makes DFS-versus-sportsbook comparison a single request.
Can I get historical player prop lines?
Yes. The archive holds 30M+ prop closing lines since June 2022, queryable through the historical endpoints for backtesting and closing line value work.
Related
/answers/player-props-api/answers/dfs-props-api/answers/nba-player-props-api/answers/backtest-betting-model